science essentials

Science Essentials

Stopper 1-hole [3.5mm hole] 20.5 x 26 x 25mm (BxTxL) No.7H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 34x39 x 31mm (BxTxL) No.13H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 22 x 27 x 28mm (BxTxL) No.8H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 24 x 29 x 29mm (BxTxL) No.9H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 27 x 33 x 30mm (BxTxL) No.10H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 30 x 34 x 31mm (BxTxL) No.11H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 31 x 36 x 31mm (BxTxL) No.12H, rubber

Science Essentials

Stopper 1-hole [6mm hole] 36 x 41x 31mm (BxTxL) No.14H, rubber

Science Essentials

Stopper conical PE 19/26

Science Essentials

Stopper conical PE 24/29

Science Essentials

Stopper conical PE 29/32

Science Essentials

Stopper No. 22 (57mm base, 65mm top - 385022) bored with a 15mm hole

Science Essentials

Stopper No. 22 (57mm base, 65mm top - 385022) bored with a 30mm hole

Science Essentials

Stopper solid 10 x 12.5 x 16.5mm (BxTxL) rubber, No. 0

Science Essentials

Stopper solid 12 x 15 x 16mm (BxTxL) rubber, No. 1

Science Essentials

Stopper solid 13.5 x 16 x 17mm (BxTxL) rubber, No. 2